Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5b883b7006a5980…

MALICIOUS

PDF

72.3 KB Created: 2021-03-15 18:10:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 2d13692d25a3e069a9ef520eec71a208 SHA-1: dd6bd83e0d43f911e56fb50168e09cecd37d89bc SHA-256: c5b883b7006a5980351b163ce6a428ac15eb09ffeef1f83be46251e676ca31bc
104 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://zajinet.ru/wix?keyword=strategic+management+and+competitive+advantage+barney+pdf+download PDF link annotation
    • http://prizinsta.site/animal_farm_novel_in_urdu56t8m.pdfIn PDF document text
    • http://sdorovie-sustavi.xyz/vodedixofu5tbc6.pdfIn PDF document text
    • https://sibovobum.weebly.com/uploads/1/3/4/8/134879451/3301835.pdfIn PDF document text
    • http://cmbespaceclient.xyz/zulekepafijebilowalagorowx7568.pdfIn PDF document text
    • http://kutufirix.iblogger.org/meviru.pdfIn PDF document text
    • https://cdn.sqhk.co/jalexire/ZcSgfih/56485590411.pdfIn PDF document text
    • http://natlegend.space/30202021966nn97p.pdfIn PDF document text
    • http://hdvideo.design/does_the_catholic_bible_contain_the_book_of_enochq20kb.pdfIn PDF document text
    • http://puxuwowu.iblogger.org/bumonotetefarowozevekoj.pdfIn PDF document text
    • https://cdn.sqhk.co/vizinifum/jbeviee/63507080425.pdfIn PDF document text
    • https://cdn.sqhk.co/musutalivun/f1RPjeB/81250963657.pdfIn PDF document text
    • http://pewuzixuk.iblogger.org/barbie_doll_cake_game_karna_hai.pdfIn PDF document text
    • https://bomexufimewaw.weebly.com/uploads/1/3/4/5/134517434/8562995.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/divikufifir/meposozalix.pdfIn PDF document text
    • https://s3.amazonaws.com/pewebopufupe/38604602235.pdfIn PDF document text
    • https://s3.amazonaws.com/laradusa/xenuretareduget.pdfIn PDF document text
    • https://s3.amazonaws.com/wutogugej/mevotojitovovenafovap.pdfIn PDF document text
    • https://s3.amazonaws.com/xakusineba/84423951675.pdfIn PDF document text
    • http://puzufowos.epizy.com/fapozetavijuju.pdfIn PDF document text
    • https://s3.amazonaws.com/pizivurapab/xparticles_2.5_serial_number.pdfIn PDF document text
    • https://s3.amazonaws.com/webipejonavuv/amadeus_pro_printer.pdfIn PDF document text
    • http://nuwuzokapa.rf.gd/alice_in_wonderland_wii_game.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dcfe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCFE 5792 bytes
SHA-256: 6176bfbefdbfe15b057ed11b14075f4b5049453047dcd6c065c335400efb1f61
font_01_sfnt_off0000f0bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0BD 10148 bytes
SHA-256: 6b5bfe55eb17717508cbc3c87cda54321f82766db692239417c11114f2f37fbc

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